There is no clear pattern identifying specific tumor types, exercise intensities, or genetic mutations that are exacerbated by exercise in preclinical animal models.

“there's no sort of pattern yet to be a okay it's exacerbating you know pancreatic cells but not liver cancer cells or that it's the high intensity exercise making things worse or versus low intensity or when we um look at the cancers with this type of mutations or if we do um forced exercise versus voluntary exercise so people have looked at all that to try and sort out um these studies it's about 10% of the studies so the majority show exercise slows the growth and spread about 10% are showing this um tumors is growing more quickly but there's no pattern to it that we can say ah we think this is what's what's driving it”